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primitives.scad: rearrange order for readability

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Colin
2023-12-21 23:08:20 +00:00
parent ccb5e541fe
commit 0ecebcc9fe
1 changed files with 20 additions and 19 deletions
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39
primitives.scad
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@@ -1,26 +1,10 @@
function _toRad(r=undef, d=undef) = (r != undef) ? r : d/2; //! general-purpose "primitives" lacking from the OpenSCAD builtins
module translateIf(cond, amount) {
if (cond) {
translate(amount) children();
} else {
children();
}
}
/// cylinder() where `center=false` behaves like for `cube(center=false)`,
/// i.e. circle center is not at (0, 0) but (r, r)
module cylinderZ(d=undef, r=undef, h=undef, center=false) {
translateIf(!center, [_toRad(r=r, d=d), _toRad(r=r, d=d), 0]) {
cylinder(d=d, r=r, h=h, center=center);
}
}
/// cylinder() but with the axis on the x axis instead of the z axis. /// cylinder() but with the axis on the x axis instead of the z axis.
/// and where `center=false` behaves like for `cube(center=false)`, /// and where `center=false` behaves like for `cube(center=false)`,
/// i.e. circle center is not at (0, 0) but (r, r) /// i.e. circle center is not at (0, 0) but (r, r)
module cylinderX(d=undef, r=undef, h=undef, center=false) { module cylinderX(d=undef, r=undef, h=undef, center=false) {
translateIf(!center, [0, _toRad(r=r, d=d), _toRad(r=r, d=d)]) { _translateIf(!center, [0, _toRad(r=r, d=d), _toRad(r=r, d=d)]) {
rotate(a=[0,-90,0]) cylinder(d=d, r=r, h=h, center=center); rotate(a=[0,-90,0]) cylinder(d=d, r=r, h=h, center=center);
} }
} }
@@ -29,8 +13,25 @@ module cylinderX(d=undef, r=undef, h=undef, center=false) {
/// and where `center=false` behaves like for `cube(center=false)`, /// and where `center=false` behaves like for `cube(center=false)`,
/// i.e. circle center is not at (0, 0) but (r, r) /// i.e. circle center is not at (0, 0) but (r, r)
module cylinderY(d=undef, r=undef, h=undef, center=false) { module cylinderY(d=undef, r=undef, h=undef, center=false) {
translateIf(!center, [_toRad(r=r, d=d), 0, _toRad(r=r, d=d)]) { _translateIf(!center, [_toRad(r=r, d=d), 0, _toRad(r=r, d=d)]) {
rotate(a=[-90,0,0]) cylinder(d=d, r=r, h=h, center=center); rotate(a=[-90,0,0]) cylinder(d=d, r=r, h=h, center=center);
} }
} }
/// cylinder() where `center=false` behaves like for `cube(center=false)`,
/// i.e. circle center is not at (0, 0) but (r, r)
module cylinderZ(d=undef, r=undef, h=undef, center=false) {
_translateIf(!center, [_toRad(r=r, d=d), _toRad(r=r, d=d), 0]) {
cylinder(d=d, r=r, h=h, center=center);
}
}
function _toRad(r=undef, d=undef) = (r != undef) ? r : d/2;
module _translateIf(cond, amount) {
if (cond) {
translate(amount) children();
} else {
children();
}
}